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국내·외 현황 분석을 통한 도시철도 곡선부 선로선형 설계기준 연구
신정렬,홍재성,이우동,김길동,한석윤,양신추 한국철도학회 2003 한국철도학회논문집 Vol.6 No.3
With designing alignment of railway for urban rail transit, a greater attention is paid to the riding safety and the comfort of the passengers. Especially, cant, transition curve, minimum curve radius are considered as very important alignment factors for the curve. For the above alignment factors, in this study, comparative studies on the design criteria of foreign rail transit are conducted. And reasonable design criteria of the alignment for urban rail transit are proposed.
국내ㆍ외 현황 분석을 통한 도시철도 곡선부 선로선형 설계기준 연구
신정렬(Jeong-Ryol Shin),홍재성(Jae-Sung Hong),이우동(Woo-Dong Lee),김길동(Gil-Dong Kim),한석윤(Seok-Yun Han),양신추(Sin-Chu Yang) 한국철도학회 2003 철도저널 Vol.6 No.3
With designing alignment of railway for urban rail transit, a greater attention is paid to the riding safety and the comfort of the passengers. Especially, cant, transition curve, minimum curve radius are considered as very important alignment factors for the curve. For the above alignment factors, in this study, comparative studies on the design criteria of foreign rail transit are conducted. And reasonable design criteria of the alignment for urban rail transit are proposed.
도시철도 선로시설물 유지관리를 위한 데이터베이스 구축방안 연구
신정렬(Shin Jeong-Ryol),이우동(Lee Woo-Dong),김길동(Kim Gil-Dong),박서영(Park Seo-Young) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
While the environment of usage of information and technology is getting stable and technology is being developed more deeply due to the globalization, making information, standardization, in order to make a fast response to the new industry strategy and business environment, mutual communication and management of correct and fast information are focused on as fundamental elements of keeping competitive power. Accordingly strategic development of urban transit operation organization, storage of information technology of urban railroad, and buildup of standard information infra are very important, so that computerized information system has been built up standardizing efficient maintenance framework of urban transit facilities. To maintain these facilities efficiently, storing the real-time information by standardizing the maintenance organization and building up computerized information system are very important with management of information history of existing maintenance work. Therefore, for the efficient maintenance of track system among urban transit facilities, standardized facilities classification and definition of management elements, and the plan of designing and building standardized database about track system through standardizing technology resources are described in this paper.
도시철도 토목시설물 유지관리를 위한 데이터베이스 구축방안 연구
신정렬(Shin Jeong-Ryol),김길동(Kim Gil-Dong),이우동(Lee Woo-Dong),박서영(Park Seo-Young) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
While the environment of usage of information and technology is getting stable and technology is being developed more deeply due to the globalization, making information, standardization, in order to make a fast response to the new industry strategy and business environment, mutual communication and management of correct and fast information are focused on as fundamental elements of keeping competitive power. Accordingly strategic development of urban transit operation organization, storage of information technology of urban railroad, and buildup of standard information infra are very important, so that computerized information system has been built up standardizing efficient maintenance framework of urban transit facilities. To maintain these facilities efficiently, storing the real-time information by standardizing the maintenance organization and building up computerized information system are very important with management of information history of existing maintenance work. Therefore, for the efficient maintenance of civil facilities among urban transit facilities, standardized facilities classification and definition of management elements, and the plan of designing and building standardized database about civil facilities through standardizing technology resources are described in this paper.
도시철도 토목ㆍ보선시설물 유지보수 정보화시스템에 대한 연구
신정렬(Shin Jeong-Ryol),박기준(Park Kee-Jun),안태기(Ahn Tae-Ki),이호용(Lee Ho-Yong),김길동(Kim Gil-Dong) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
For efficient maintenance on urban transit infrastructure, computerized system using wireless communication system which allows to inquire necessary data and to record maintenance work on the spot in realtime is required. Also, for efficient maintenance progress on urban transit infrastructure which have geographic data, computerized system united with geographic information system that offers visual information is required. In this paper, investigations on new IT technology and on computerized system of foreign country are conducted. And development direction and model of computerized system for maintenance on urban transit infrastructure are proposed.
김길동,신정렬,이우동,박현준,김희중 한국철도학회 2004 한국철도학회논문집 Vol.7 No.3
This paper describes a low-cost single-phase active power filter, which consists of a half-bridge PWM inverter with a simple control circuit. In order to verify the performance of proposed active power filter, many computer simulations with EMTP codes and experimental works with a hardware prototype were done. Both results confirm that the proposed active power filter shows excellent performance to eliminate the harmonics generated in the single-phase non-linear load. The active power filter has advantage of low implementation cost and compact size, using a half-bridge inverter and a simple control circuit with only one current sensor. So, it can be fabricated as a plug-in type. This paper shows the necessity and a good possibility to apply such advantage to the electric railway system.